Structure of the helminth community in Dermatonotus muelleri (Anura: Microhylidae) from the driest area of the American Chaco

• Autorzy: Gonzalez C.E. , Dure M.I. , Palomas S.Y. , Schaefer E.F.
• Języki publikacji: EN

Abstrakty

EN

The present study describes the helminth community collected from juveniles of Dermatonotus muelleri (Anura: Microhylidae) from the Chaco Seco Ecoregion. Helminths were found in 80.0% of specimens examined (n =16). The helminth community of this microhylid presented very low species richness; a total of 1,339 specimens belonging four helminth species were found; three adult nematodes, Aplectana hylambatis, Cosmocerca podicipinus and Parapharyngodon sp., and an adult cestode, Ophiotaenia sp. Parasites were found in the large and small intestines. Maximum helminth richness was 2 species per infected frog. The nematode A. hylambatis presented the highest prevalence and was the most abundant (d = 0.97) indicating that it is the dominant species in the community (I = 63.0). Host snout-vent length did not influence the intensity of infection or the richness of helminth species at the community component level. Two species showed significant co-variation (A. hylambatis and Parapharyngodon sp.). The high prevalence of infection and number of parasites found for A. hylambatis could be related to the characteristics of their life cycles; the possession of the infective stage (L3) protected inside the egg membrane would have benefits against extreme drought in the area in which the study was conducted. The studies of helminths in the Chaco Seco Ecoregion, an area seriously threatened in terms of its biodiversity, are incipient. This is the second study that has been carried out to determine the structure of the parasite community in amphibians of this ecoregion.

• Wydawca: -
• Czasopismo: Annals of Parasitology
• Rocznik: 2020
• Tom: 66
• Numer: 1
• Opis fizyczny: p.39-47,fig.,ref.

Twórcy

autor

Gonzalez C.E.

• Centro de Ecologia Aplicada del Litoral (CECOAL), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta 5 (km 2.5), 3400 Corrientes, Argentina

autor

Dure M.I.

• Centro de Ecologia Aplicada del Litoral (CECOAL), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta 5 (km 2.5), 3400 Corrientes, Argentina

autor

Palomas S.Y.

• Departamento de Biologia, Facultad de Ciencias Exactas y Naturales y Agrimensura (FaCENA), Universidad Nacional del Nordeste (UNNE), Avenida Libertad 5470, 3400, Corrientes, Argentina
• Instituto de Ecoregiones Andinas (INECOA), Universidad Nacional de Jujuy (UNJU-CONICET), Av. Bolivia 1711, 4600, Jujuy, Argentina

autor

Schaefer E.F.

• Centro de Ecologia Aplicada del Litoral (CECOAL), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta 5 (km 2.5), 3400 Corrientes, Argentina

Identyfikatory

DOI

10.17420/ap6601.236